9GK1 | pdb_00009gk1

SSX structure of human cytochrome P450 3A4 at room temperature


X-RAY DIFFRACTION

Serial Crystallography (SX)

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4TQN 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.3293.15Final droplet contained 6%v/v PEG3350, 50 mM sodium malonate, 15 mg/mL CYP3A4, 25 mM KPi pH 7.3, 100 mM KCl, 1 mM DTT, 0.5 mM EDTA, 10%v/v glycerol, 1%v/v DMSO and 100 uM beta-napthoflavone. The droplet was equillibrated against a reservoir of 100 mM sodium malonate and 12%v/v PEG3350. The crystalisation droplet swelled due to high glycerol concentration.
Crystal Properties
Matthews coefficientSolvent content
2.4148.95

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.95α = 90
b = 103.74β = 90
c = 128.64γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293PIXELDECTRIS EIGER X 16MBioMAX components: undulator, two front-end beam position monitors, front-end fluorescent screen, optics hutch fixed mask, double-crystal monochromator, fluorescent screen, NanoBPM, slits, vertical focusing mirror, horizontal focusing mirror, NanoBPM, beam conditioning unit (BCU), sample and detector. The BCU chamber includes slits, diagnostics, two diamond beam position monitors, attenuators, shutter, slits and diagnostics.2022-12-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONMAX IV BEAMLINE BioMAX0.976MAX IVBioMAX

Serial Crystallography

Sample delivery method
Diffraction IDDescriptionSample Delivery Method
1Serial X SPINE-mounted Kapton membrane sandwich on a plastic framefixed target
Fixed Target
Diffraction IDDescriptionSample HoldingSupport BaseMotion controlDetails Sample Solvent
18 x 1 uL crystal slurry on kapton filmsSerial X SPINE-mounted Kapton membrane sandwich on a plastic frameSPINE-compatibleArinax Microdiffractomer MD3-downArinax Microdiffractomer MD3-down mini-kappagoniometer head
Measurement
Diffraction IDPulse DurationPulse Repetition RateFocal Spot SizePulse EnergyPhotons Per Pulse
1undefined (fs)undefined (KeV)
Data Reduction
Diffraction IDFrames IndexedCrystal HitsFrames IndexedLatices Merged
15267052670

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)CC (Half)R Split (All)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.9580.751000.99539220.054314.758752416.9111603121.39
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)R Split (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.9531000.54536460.73041282.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.9580.751100958999.940.246430.243690.24950.295080.3008RANDOM143.605
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-1.740.11.64
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.474
r_dihedral_angle_3_deg19.105
r_dihedral_angle_4_deg13.977
r_dihedral_angle_1_deg4.682
r_angle_refined_deg1.208
r_mcangle_it1.069
r_mcangle_other1.069
r_angle_other_deg0.975
r_scangle_other0.939
r_mcbond_it0.573
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.474
r_dihedral_angle_3_deg19.105
r_dihedral_angle_4_deg13.977
r_dihedral_angle_1_deg4.682
r_angle_refined_deg1.208
r_mcangle_it1.069
r_mcangle_other1.069
r_angle_other_deg0.975
r_scangle_other0.939
r_mcbond_it0.573
r_mcbond_other0.573
r_scbond_it0.319
r_scbond_other0.319
r_chiral_restr0.035
r_bond_refined_d0.002
r_gen_planes_refined0.002
r_gen_planes_other0.002
r_bond_other_d0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3738
Nucleic Acid Atoms
Solvent Atoms2
Heterogen Atoms43

Software

Software
Software NamePurpose
REFMACrefinement
CrystFELdata scaling
CrystFELdata reduction
PHASERphasing
Cootmodel building